* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
a {
    text-decoration: none;
}
ul,
li {
    list-style: none;
}
.fc {
    color: #222;
    font-weight: 400;
}
.box {
    background-color: #f7f7f7;
    overflow: hidden;
}
.header {
    width: 100%;
    height: 78px;
    background-color: #fff;
    position: fixed;
    top: 0px;
    left: 0px;
    color: #222;
    box-shadow: 0 2px 0 0 rgb(0 0 0 / 2%);
    z-index: 20;
    transition: background 0.2s ease-in-out;
}
.header .container {
    display: flex;
    height: 100%;
    align-items: center;
}
.header .logo {
    width: 180px;
    height: 30px;
    margin-right: 5px;
    background-image: url("https://muse.huaban.com/assets/c257ccb2a5a50804cc67d3cc09c3f337.svg");
}
.header .nav {
    display: flex;
    height: 100%;
}
.header .nav .item {
    margin-left: 35px;
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
}
.header .nav .arrow {
    display: block;
    border: 5px solid transparent;
    border-top-color: #000;
    margin: 0 0 0 1em;
}
.header .nav .item:hover .submenu {
    display: block;
}

.header .nav .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: -35px;
    width: 360px;
    box-shadow: 0 0 0 1px rgb(0 0 0 / 3%), 0 1px 3px 0 rgb(0 0 0 / 7%),
        0 4px 16px 0 rgb(0 0 0 / 7%);
}
.header .nav .submenu div {
    left: 0;
    min-width: calc(100% - 1px);
    border-radius: 0;
    background: #fff;
    margin: 0;
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 8%);
    position: relative;
    display: flex;
    flex-wrap: wrap;
    padding: 20px;
}
.header .nav .submenu a {
    margin-left: 0;
    margin-right: 0;
    width: calc(50% - 2 * 0.5rem);
    padding: 12px 0 !important;
    height: 40px;
    color: #000;
    font-weight: 400;
}

.header .nav a:hover {
    color: tomato;
}
.header .nav .submenu::before {
    content: "";
    position: absolute;
    top: 0;
    left: 34%;
    width: 12px;
    height: 12px;
    background-color: #fff;
    -webkit-transform: translate(-50%, -50%) rotate(45deg);
    transform: translate(-50%, -50%) rotate(45deg);
    border-top: 1px solid rgba(0, 0, 0, 0.07);
    border-left: 1px solid rgba(0, 0, 0, 0.07);
}

.header .login_register {
    margin-left: auto !important;
}
.header .login_register button {
    margin-right: 10px;
    font-size: 16px;
    padding: 6px 20px;
    border: 1px solid transparent;
    width: 75px;
    height: 34px;
    line-height: 20px;
    font-weight: 400;
    cursor: pointer;
}
.header .login_register .login:hover {
    color: #fff;
    background-color: #ccc;
}
.header .login_register .register {
    background: #c0a75e;
    color: #fff;
}

@media only screen and (min-width: 1180px) {
    .container {
        width: 1180px;
        margin-left: auto !important;
        margin-right: auto !important;
    }
}
@media only screen and (min-width: 768px) and (max-width: 1179px) {
    .container {
        width: 740px;
        margin-left: auto !important;
        margin-right: auto !important;
    }
}
@media only screen and (max-width: 767px) {
    .container {
        margin-left: 1em !important;
        margin-right: 1em !important;
    }
}

.content {
    margin-top: 100px;
    font-size: 14px;
}

.content .container {
    display: flex;
}

.content .left {
    width: 75%;
    padding: 10px;
    box-sizing: border-box;
}
.content .left .con {
    padding: 20px 30px;
    background: #fff;
}

.content .left .breadcrumb {
    line-height: 1;
    display: inline-block;
    margin: 0;
    vertical-align: middle;
    font-size: 16px;
    color: #999;
}

.content .left .breadcrumb a {
    color: #999;
}
.content .left .title {
    color: #222;
    font-size: 20px;
    margin-bottom: 30px;
    margin-top: 4px;
    padding: 0;
    border-bottom: none;
}
.content .left .banners {
    margin-left: -30px;
    margin-right: -30px;
}
.content .left .description {
    margin-top: 30px;
}

.content .left .des_title {
    color: #999;
    line-height: 1.4;
    margin-bottom: 12px;
    margin-top: -0.14285em;
}

.content .left .description .item {
    background-color: #f8f8f9;
    padding: 2rem;
    margin-bottom: 1rem;
}
.content .left img {
    width: 100%;
}
.content .right {
    width: 25%;
    padding: 10px;
}
